Upgrade / migrate any OTRS to latest Znuny

OTRS, Znuny and OTOBO have a clean upgrade path. The page is pretty straight forward. All upgrades need to be executed after another. Means how can you upgrade the versions 1.1, 1.2, 1.3, 2.0, 2.1, 2.2, 2.3, 2.4, 3.0, 3.1, 3.2, 3.3, 4, 5, 6.0, 6.1, 6.2, 6.3 and 6.4

How to upgrade / migrate to latest version

You have to upgrade to each of this named versions, step by step. Means you cannot skip any version upgrade! You have to execute the upgrades in this order:

  • 1.1
  • 1.2
  • 1.3
  • 2.0
  • 2.1
  • 2.2
  • 2.3
  • 2.4
  • 3.0
  • 3.1
  • 3.2
  • 3.3
  • 4.0
  • 5.0
  • 6.0
  • 6.1
  • 6.2
  • 6.3
  • 6.4
  • and so on

For example if you are on version 3.3 right now and you want to get to 6.4, you have to execute each upgrade step:

  • upgrade to 4.0
  • upgrade to 5.0
  • upgrade to 6.0
    last OTRS maintained version and fork to Znuny
  • upgrade to 6.1
    first Znuny only maintained version and fully compatible to OTRS
  • upgrade to 6.2
  • upgrade to 6.3
  • upgrade to 6.4

You must not skip any step, since the upgrades are not cumulative and each upgrade step must be executed.

Experiences prior 6.1+ upgrades

Sadly prior 6.1 the upgrade are a big pain. Depending on your size of the installation the upgrades can take ages or many intermediate steps to fix upgrade issues.

Steps for the upgrades:

  • Ensure that you have a good testing environment with your real data to test the upgrades
  • Ensure that your fall-back in the production upgrade, so that you can quickly switch back to the backup to be back online fast
  • Do thorough tests before you go online on production!
  • read this also: Prepare / start a upgrade / migration of OTRS / Znuny

Where can you find the public documentations?

Related articles

Prepare / start a upgrade / migration of OTRS / Znuny
Upgrade/Migrate trouble-free from OTRS 5 to OTRS/Znuny 6
Upgrade/Migrate trouble-free from Znuny 6.0 to Znuny 6.1
Upgrade/Migrate trouble-free from Znuny 6.1 to Znuny 6.2


Do you need help with Znuny / OTRS?
We have lot of experiences with OTRS and Znuny and can help you with your issues. Get in touch with us and we will check if and how we can help you.

Leave a Comment

Do you need help with Znuny / OTRS?​

We have lot of experiences with OTRS and Znuny.
We can help you with your issues to solve them.

From giving you support up to implementing integrations to your existing systems.

Get in touch with us and we will check if and how we can help you.​

Get OTRS/Znuny/OTOBO Support
Step 1 of 2
To get a quick and efficient clearance of your needs, our experts will call you.
We communicate in English.
Maybe we can communicate in your native language too. So please let us know your native written and spoken language.

Your environment

We have different partners for different tasks and company sizes.
To assign you the right partner and thus the proper system engineers, we would like to ask you for more details about your environment.
The more details we get the quicker we can narrow down to the right persons.